Since entering the video game market in the 1970s, Nintendo has maintained a very family-friendly image. Between manufacturing some of the 1980s most exciting arcade games to branching off into handheld systems and home consoles, it's safe to say Nintendo has become one of the gaming industries most prolific contributors. However, the company hasn't always been so squeaky clean. Nintendo had dealings with the Yakuza early in the company's development.
Source：https://www.cbr.com/nintendo-japanese-yakuza-history/
